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电网技术  2009 

基于无差拍控制的线电压检测动态电压恢复器

, PP. 106-112

Keywords: 动态电压恢复器(DVR),电能质量控制,基波向量,无差拍控制

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Abstract:

动态电压恢复器(dynamicvoltagerestorer,DVR)是用于电能质量控制的主要设备之一。文章设计了一种DVR拓扑结构,不同于传统三相独立补偿单元的DVR,它针对三相三线制电网,采用2个独立补偿单元,经由滤波电容直接串入主电网。根据技术要求设计实现的原理样机采用无差拍控制,通过线电压检测进行电压跌落补偿。实验证明,原理样机能及时检测系统电压扰动,并予以准确的补偿。

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